Main/Growing the Beard - Television Tropes & Idioms
http://tvtropes.org/pmwiki/pmwiki.php/Main/GrowingTheBeard
The opposite of Jumping the Shark, Growing the Beard is the definitive moment when a television series begins to become noticeably better in quality.
Clearly insane man pops dentures, ignites beard.
http://24.media.tumblr.com/b3dad494aeed8828cc69bc4714a4c837/tumblr_mpl9pbrt0j1rc48zio1_400.gif